Hand shoe-stitching machine



sept. lo, A- FIQUET El- AL y HAND SHOE STITCHING MACHINE Filed Jan. 1o, 1954 Sheets-sheet 1 E vm Sept. 10, 1935. A. FIQUET` Er AL HAND SHOE STITCHING MACHINE 4 Sheets-Sheet 2 Filed Jan. l0, 1934 El F; 1 'mmfmvz Sept. 10, 1935. A. L.. FlQuET ErAL 2,014,318

` HAND SHOE STITCHING MACHINE Filed Jan. 1o, 1954 4 sheets-sheet 3 TSC . jrvEMToHSf-H @Lm/Fw "'MWMW /v MM were s Filed Jan. 10, 1954 4 Sheets-Sheet 4 -igs.

a2 vme Patented Sept. 10, 1935 UNITED STATES PATENT OFFICE HAND SHOE-STITCHING MACHINE Arthur Louis Fiquet, Montigny Les Corneilles, and Andr Gabriel Mousset, St. Mande, France Application January 10, 1934, Serial No. 706,124 In France January 11, 1933 7 Claims.

The present invention relates to improvements in portable machines for stitching shoes by chain and that of the needle mounted in the head, without the agency of gearing or transmission members.

An object of the invention is to provide a machine in which the movement of the looper is connected to that of the needle through the rnedium of a connecting rod which, on the one hand,

Ving the point, said lever being normally held in its position of rest by a spring.

According to another characteristic, the collar supporting the presser-foot is mounted on the xed bearing and is guided in its displacement relative thereto by two positioning studs, one of which extends beyond the collar and is held in a fork which rotates in such Wise that the prongs are brought into gripping relation with the stud and hold it stationary, as also the collar, during the travel of the needle holder, under the action of a cam carried by the sliding block, thus preventing the presser ioot from moving relatively to the work, said fork being released on the other hand when the needle is at the end of its upstroke.

According to a further characteristic, the displacements oi the needle holder on the frame of the machine are braked so as to prevent the needle holder from being displaced save when its displacement is positively controlled by the stops of the sleeve.

According to a still further characteristic, the cast-off cooperating with the needle is carried by a ring secured to the needle holder, it being, how- (Cl. i12-34) ever, possible for said cast-off to slide in said ring when it has moved right down into contact with the work while the needle penetrates therein,

a spring returning it to its position of rest when the needle holder rises again. n y In the prior art machines, the Work is held'by a presser foot and released by the latter when the feed point feeds forward the work. The raising of the presser foot to release the work When the Work is thus fed forward, necessitates the adjustment of the collars mounted on the needle holder,

with respect to the thickness of the work to be sewn, since the collars can only full their function if, at the end of the stroke, they come into contact soon enough with the collars against l15 which they abut. It is another object of this invention to provide Ya machine which overcomes this drawback by obviating the necessity for making vany adjustment, Whatever may be the thickness of the work. 2O

For this purpose, according to one forni-of the invention, the combined feed point and `presser foot does the work of the presser foot and takes the place of these two separate members- The combined feed point andpresser foot is carried 25 by a collar which slides on the needle holder and which falls by gravity and is furthermore urged by a spring to pressl the combined feed point and presser foot against the Work, said coll-ar being raised, to raise the combined feed point and presser foot, by a crank lever one end of which isI shaped as a toothed sector which is engaged by a-fpawl which is displaced at the required moment'by a cam carried by the sliding block operating in the head of the machine. Said pawl is carriedfby a support on which the said cam acts. Said collar is locked, so as to prevent the combined feed point and presser foot from being raised while the needle is being withdrawn from the work, by means of a push rod which bears firmly on the 40 collar or a member securedthereto, and onl which acts one end of a forked lever, theA other arm of which is pushed by a cam.

According to a further feature of the invention,

the two arms of said forked lever are of greatly 45 different lengths so as to increase the force exerted on the push rod.

According to another feature, the presser-foot is pivotally mounted on the collar which carries it, so that it can rock and feed forward the Work at the appropriate moment. The rocking of the presser-foot is controlled lby vthe lateraly displacement, dependent upon the displacement of the sliding block, of a pin which engages in a. groove in the body of the presser-foot, and which ,55

. work to be done. ,the thread vsupply |09, the wax pot and the can thus rock said presser-foot without preventing the vertical displacement of the latter.

Other advantages and peculiarities of the invention will be apparent from the ensuing description taken inconjunction with the accompanying drawings in which:

Fig. 1 is a side elevation of the shoe stitching machine according to the invention.

Fig. 2 is a front elevation thereof.

Fig. 2a is an elevation of a detail of the machine.

Fig. 2b is a section on the line 2b--2b of Fig. 2a.

Fig. 2c is an enlarged detail view of a part of the machine.

Fig. 3 is a front elevation of the head of the machine, showing a modification according to the invention.

Fig.4 is a side elevation of the same head viewed from the right side of Fig. 3.

Y Fig. 5 is a side elevation of the same head Vviewed from the left side of Fig. 3.

The machine comprises a frame I0| which may be fixed in any suitable manner on any stand, table or support. Said frame comprises a base |02 and a standard |03, which at its upper end, includes three bearings |04, |55 and |05. lAs in the majority of shoe-stitching machines, the base |02 carries a turn-table |01 freely rotatable yabout its spindle, so that the horn may be swung into various positions according to the On the turntable is located thread tensioning device II all of which are .known members in stitching machines of this type and hence need not be described in detail.

, At the upper end of the horn |08 is situated the looper of standard type in machines for effecting chain stitching, and which consequently has likewise not been represented in detail. The looper is rotated through a bevel pinion transmission mounted in the horn, the pinion ||2 being mounted on a rod ||3 constituting the spindle of the turntable |01 and which is driven from its which is set on a spindle I I5 which is rotated by handle I I1. On the spindle I l5 is likewise set a yspur pinion ||8 which gears with a gear IIS,

carried by the frame of the machine. The two pinions of each pair of bevel pinions ||2 and |I4,

` which transmit the movement of the wheel to the looper situated at the upper end of the horn,

have the same diameter, so that the looper mounted a cranked rod |20 pivoted at its upper end on a sliding block |2| moving in the head of the machine. In said sliding block screws a sleeve |22 which to this end is threaded over a portion of its length and which may be locked in its adjusting position with respect to the slid- 65- ing block |2| by means of a nut |23. Said sleeve is guided at its upper end in the bearing I 04 Y carried by the frame of the machine and likewise kat its lower end in the bearing |05. Said sleeve surrounds the needle-holder rod 24, the diameter of which is reduced over the portion thereof surrounded by the sleeve, but preferably it has the same diameter as the latter below the lower end of said sleeve at |25, in order to form at this point a shoulder enabling the sleeve to rest against the rod. The needle-holder rod 24 itself passes through the bearing |06 and in the latter is located a screw |26 which, through the medium of an inner spring, presses a friction wad against the needle-holder rod |24. Said rod is thus prevented from moving freely in the bearing i, save when it is positively displaced ln the manner hereinafter to be explained.

Against the bearing |06 rests a collar 21 to which the presser foot .|28 is secured and on which is pivotally mounted the lever |29 carrying at its lower end the point |30 which feeds the work forward at each stitch. On this collar are fixed by means of nuts |3I, two positioning studs |32 and |33 which slide in bores of the same diameter provided to this end in the bearing |06. rl'his provides a guide for the collar |21 when it is raised with respect to the bearing |05. Said collar is normally pressed against the bearing |06 by a spiral spring |34 which at its upper end presses against the fixed bearing |05 and at its lower end against the screw |35 screwing in a tapping of the collar |21, in order to enable the tension of the spring to be adjusted. The screw |35 is naturally recessed at its centre so as to enable the needle-holder rod |24 to pass freely therethrough.

On the frame of the machine may pivot a lever I 35, the short arm |31 of which has a point of support in a portion of the collar |21 recessed at this point, whereby it is possible by pressing on the lever |35 to raise the collar with respect to the bearing |05, thus compressing the spring |34; this lifting operation naturally causes the presser foot and point to rise whereby it is possible to place the shoe to be worked on the horn |08.

The lever I 29 carrying the feed point |30 is normally pushed to the left (Figure 2) at its upper end by a spring |38 in order to hold the point I 30 displaced to the right. Said lever |29 carries at its upper end a roller |39 which, as the machine operates, moves over a guide-way |40 carried by the sliding block |2| and which encounters an adjustable cam I4| when said sliding block is at the top of its travel.

Again, the sliding block likewise carries a camtrack |52 against which bears the end of a spring |63 so as to thrust said spring to the left during the whole duration of displacement of the sliding block, save at the end of its upstroke. Said spring constitutes the crank handle of a fork |44 horizontally trunnioned and the two prongs of which straddle the upward extension of the positioning stud |33. When the spring |43 is pushed to the left, as illustrated in the drawings, the fork |44- intermediate its ends is screw-threaded and on this screw-threaded portion screws a disc lI=l6 having a lock-nut for locking the same.

Finally, on the upper screw-threaded portion of the needle-holder |24 screws a nut |41 acting as an abutment as will be indicated hereinafter and which a lock-nut holds in position.

At its lower end, the needle-holder carries a ring |88 on which is fixed a leaf spring |49, while in said ring may slide a cast-off |50, the upper end of which is bent over at right angles at |5I, the leaf spring |49 normally bearing against said bent end I5I. The needle-holder |24 has a slot at |52, in which said cast-off is slidable, as will be explained hereinafter.

This machine operates in the following manneri- The rotation of the toothed wheel ||9, when `the'wheel ||6 is rotated, imparts a reciprocating movementI to the connecting rod and hence to the sliding block |2| pivoted thereon. The

sleeve |22 which is secured to said sliding block,

since, as has been stated, it is screwed therein, therefore reciprocates like the sliding block. During the down stroke of the sliding block and sleeve, the latter strikes the shoulder of the `needle-holder |24 and from then on displaces .the needle-holder.

duced, owing to the braking force exerted thereon by the aforesaid friction wad which the screw |26 presses against said needle-holder. When the sleeve is moved up a suicient distance, its upper-end strikes the nut |41 which is screwed on the upper threaded end of the needle-holder |24. From this moment, the .sleeve rises carrying the needle-holder with it and thus extracting the needle from the shoe.

lWhen the sleeve and with it the sliding block reach the upper end of their stroke, the cam |4| carried by the sliding block, bears against the .roller |39 of the lever |29 carrying the point |30',

causing the roller |39 to be displaced to the right (Figure 2) and hence the point |30 to be displaced to the left, the latter moving the shoe the distance between the stitches. `At the same time, the dise |46 mounted on the needle-holder is lbrought against the collar |21 and raises the latter. Hence, this displacement, at the same time causes the presser foot |28 to be raised, whereby it is possible to displace the shoe which is no longer held down by said presser foot. As has been indicated above, the sleeve can screw in the sliding block whereby it is possible to regulate the moment at which the sleeve displaces the needle-holder; the depth of penetration of the needle in the work is thus adjusted according tov the thickness thereof. Similarly, the nut |41 may be displaced on the needle-holder, whereby it is possible to regulate the moment at which the sliding block displaces the needleholder on its upward path. Finally, the disc |46 likewise screws on the needle-holder, whereby it is possible also to adjust the moment at which the collar |21 is raised,

As has been explained above, the positioning stud |33 is gripped at its upper end between the prongs of the fork |44 during the-whole stroke of ythe sliding block, both on its downward and on its return movement. Said positioning stud is secured to the collar |21 and consequently the latter is likewise locked, whereby the presser foot |28 is locked on the work and prevents the latter from jerking, as might otherwise occur.

f Again, the collar |21 is held normally against the bearing |06, even when the stud |33 is not locked, by means of the spring |34 which, as has 'been stated, bears at its upper end against the fixed bearing |05 and at its lower end against the screw screwing in the collar; thus, by screwing up or unscrewing said screw, it is possible. to adjust the tension of the spring |34.

The needle co-operates with the looper to form the chain stitch in the known manner, which consequently will not be described here in detail. As is known, this operation is performed with the help of a cast-01T which comes intoposi- :g

tion in front of the hook of the needle when the latter leaves the work, so as to prevent the hook of the needle from picking up the thread which it had previously dropped. When the needleholder moves downwards to cause the needle to penetrate into the work, the cast-off |50 abuts against the work and therefore slides in the ring |48 which carries it. Due to such sliding movement, the horizontally bent portion |5| of said cast-off raises the spring |09 and moreover the vertical portion of the cast-off |50 slides in the slot |52 provided to this effect in the needleholder. When the needle-holder rises again, the cast-on which is carried along and which .then no longer rests against the work, is brought back into position by the action of the spring |49. Consequently, during the whole time that the needle rises and until its point has left the work, the counter-hook remains in front of said needle sliding along the latter.

As has been stated previously, while the sliding block |2| reciprocates under the action of the connecting rod |20, the looper revolves twice about its axis to co-operate with the needle in order to make the chain stitch.

As is seen from what precedes, the machine according to the invention is very compact, its bulk is extremely small in comparison with that of all existing machines. Furthermore, the movements of the needle-holder and the looper are coup-led together in a very simple manner without any complicated transmission as is the case in existing machines. Hence, the manufacturing cost of the machine according to the invention is far lower than that of existing machines and the machine is more particularly suitable for small current repairs.

In the preceding description, it has been assumed that the machine is hand-operated which, moreover, is most convenient for light work of the type just referred to. It is evident that it could be controlled just as well by a treadle or a motor, either by means of a connecting rod driving the wheel I6, or by replacing the latter b v a belt pulley.

In the machine described with reference to Figsv 1 and 2, the height of the presser foot remains constant once it is adjusted. As already explained this may, in some cases, be disadvantageous.

This drawback is avoided in the modification of the head shown in Figs. 3, 4 and 5, the presser foot and the feeding point being replaced by a single member which adjusts itself automatically for every stitch, to the height of the work on which it presses. This object is attained by means of the following mechanism:

The left side, looking at Figure 3, of the collar I2 forms a cam with which cooperates the tappet 55 constantly retracted by a spring 59 which is attached thereto and secured elsewhere to the bearing |55 xed to the frame |93 of the machine. The tappet 55 swings about a pin which passes through and is xed in a boss 2 of the frame |03. Said tappet 55 is provided on one side with a point 59 which according to circumstances, either bears against a recessed portion of the collar |2|, or against the vertical edge 51 constituting the side of the collar |2| or finally lunder the lower end 58 of said edge which forms :a f5

stop. 'Ihe collar |2I is also extended on this 4sideon its under side by a member 4 which also forms a cam on its left face and, in particular, has'an oblique slope 13. On the opposite side of thetappet 55, the latter has a face 6i) on which can bear the end of a lever 6| which is pivoted at I4 on a pin xedly mounted on the frame of the machine. Said lever 6| carries at its other end an adjustable screw stop 63 by means of which said lever 6| acts on a push stud 62. The push stud 62 presses on a rod 32 which can slide in a boss 3 secured to the bearing |08 and which is fixed to a collar 21. The stud 32 carries a knob 68 which passes in an elongated slot 69 provided in a bell crank lever 5 which is pivoted on a pin 64 mounted on the frame of the machine and which carries at the end of its other arm a toothed sector 65 with which can engage a pawl 10, which is pivoted at 6 on the support 66 which pivots on the same pin 64 as the bell crank lever 5, but which is independent of the latter. The pawl 18 is constantly urged towards the sector 65 by means of a spring 1| attached at 1 to the pawl support. At its other end, said pawl has a heel 8 with which cooperates the stop 58 of the collar |2I. The pawl support 56 is constantly urged towards the right by means of a spring 61 attached to said pawl support, for example, at the same point 1 as the spring 1| of the pawl 10, and attached also to the xed bearing of the machine. Said pawl support is provided with a heel 12 which constantly bears against the member 4 under the action of the said spring 61.

' On the collar 21 is pivoted at 54 a lever 53 carrying at its lower end the point 58 which, as will be explained hereinafter, serves at the same time as a presser foot and feeding point. The lever 53 has an elongated opening 14 in which passes a pin 85 fixed by means of a nut 86 on a lever 16 which is pivoted at 11. lThe portion of the pin 85 which passes through the opening 14 of the lever 53 is surrounded by a roller which enables the lever 53 to swing about said pin 85. The pin 85 can be xed at any point of the lever 16 which also has an elongated opening 15 which over a portion of its length registers withthe opening 14 of the lever 53. In the opening 15 of the lever 16 there also passes a roller 8| fixed on a blade 18 which slides in a lug 84 of the collar |2I. On the blade 18 two stops 19 and 80 are fixed on either side of the lug 84, on the other hand the blade 18 passes under a spring 82 which tends to bring it into frictional engagement with a lug 83 secured to the frame through the instrumentality of the bearing |85.

'I'his device operates in the following manner:

In Figures 3, 4 and 5 the parts are shown in the position which they occupy when the collar I2I is in its lower position, the needle 9 being then lowered into the work I0 and the point 50 bearing on said work. When the collar I2| begins to rise under the action of its actuating link, the tappet 55 begins to turn as soon as the rounded portion 81 bears against its point 59. Under the action of this movement, the lever 6| is pushed back towards the left and the screw stop 63 carried by said lever beyond the pivoting point I4, pushes the push rod 62 with a force which is multiplied by the ratio of the lever arms, that is to say, about ten times the force exerted by the tappet 55 on the lever 6|. The push rod 62 bears against the stud 32 and holds it stationary in its slide, at the same time holding stationary the collar 21 on which the point 50 is mounted. By this means the work in which the needle 9 then rises cannot be raised by said needle since the point 50 continues to be rmly pressed against said work.

At the same time, as soon. as the collar |2| rises, the nose 8 of the pawl 10 is no longer held 5 by the stop 58 and the pawl can turn in a counter.-

clockwise direction under the action of the spring 1 I. The tooth of the pawl then engages with the toothed sector 65 in the position occupied by the latter. The collar I2| continuing to rise, and 10 with it, the member 4 which it carries, the heel 12 of the pawl support 86 soon bears against the slope 13 of the member 4, then against the'succeeding verticalportion and is thereby drawn back towards the right by means of the spring 61. l5 It of course carries with it in this movement the pawl 10 which it supports and said pawl consequently engages with a certain tooth of the sector 65, according to the position occupied by the latter. During this movement'the lug 84 is raised 20 with the collar I2| to which it is secured, said lug having begun to slip on the blade 18 without moving the latter with it, owing to the fact that said blade is, on the other hand, irmly pressed by the spring 82 against the lug 83. However, 25 when the lug 84 has come to bear against the stop 13, it raises with it the blade 18. The roller 8| which is fixed on said blade rises, first of all Yin the vertical portion of the groove 15 then in the oblique portion of the latter. As the roller 8| is 3D secured to the blade 18 which can only move longitudinally, the roller 8| which is then in the oblique portion of the groove 15, rocks the lever 13 in which said groove is provided, causing it to swing about its axis 11 in a counterclockwise di- 35 rection.

As already stated, the pin 85 is xed on the lever 16. The pivoting of the lever 16 causes the pin 85^to rotate about 11 in a counterclockwise direction, and it carries with it thelever 53 40 which in its turn pivots about lthe axis 54, and which will consequently pivot in a clockwise direction: the point -50 which is pressed against the work will consequently move forward towards the needle, carrying with it the work then 45 rising up from the latter, owing to the fact that lever 16. This enables the travel of the point 58 to be lengthened or shortened, by altering the distance of the pin 85 from the two pivot points 54 and 11 of the levers 53and 16,

When the collar |2| reaches a position near the upper end ofits travel, the rounded portion 81 has passed the point 59 of the tappet, and the flat face of the tappet bears `against the face 51 of the collar, then at the end of the travel the point 58 turns beneath the stop 58. At this moment the point which isA at the end of the lever 6| is no longer pushed by the projecting 70 face 6) of the tappet, and the lever 6| isy finally unlocked so as to be in this position when the collar |2| reaches its top dead centre. f

At the beginning of the down stroke, the lug 84 of the collar |2| moves away from the stop 19, 75

and does not carry with it the blade 18 for the same reason as previously, since the latter is braked by the spring 82. It only carries said blade with it when it has encountered the sto-p 80, but during this time, the needle 9 has moved down on the work and holds the latter. During this time, the stop 5S of the left end of the collar l2! has encountered the point 59 of the tappet, so that the locking lever 6I is released and the push stud E2 ceases to act on the rod 32. This is the case for the whole duration of the down stroke.

When the lower portion of the lug 84 encounters the stop 88 of the blade 18, the latter moves downward, and, with it the roller 8! which it carries, which moves down in the slot l5. By this means the lever 15 returns to its vertical position rotating about H in a clockwise direction and this causes, in a converse manner to that which was followed during the raising, of the collar I2 I, the lever 53 to rotate, and with it the point which returns to its original position towards the right. Immediately before this return movement, the heel 12 of the pawl holder 66 is pushed by the inclined portion 'I3 of the member 4. The pawl holder 66 then rocks about the pin 64 in a counterclockwise direction carrying with it the'pawl 10 which is in engagement inthe toothed sector 65. This toothed sector then likewise rotates in the same direction about the pin 64 and, through the instrumentality of the pin 68 which passes in the slot 69 of the lever 5, raises the stud 32 and with it, the collar 2l, the lever 53 and the point 50 which are carried by said collar. The point 5B has therefore been brought backwards and raised by two diierent mechanisms.

At the end of the stroke, the stop 58 bears on the tail 8 of the pawl 18 which is raised and releases the sector 55. As the latter `is no longer held, the collar 2l falls do-wn, bringing back the sect-or into its starting position and the point 50 bears against the work. At the same time, the point 59 of the tappet 55 has been passed by the flat portion 5'! of the collar I2I and has placed itself inthe rounded portion 81 under the action of the spring 56.

In short, the following operations take place:

A. Raising of the needle with the loopI of thread. The needle holder, through the instrumentality of the clamping ring carries with it the cast-off as the needle comes out of the work, by

' means of a known mechanism. During this time the point forming the presser foot is locked.

B. The work moves forward under the action of the presser-foot.

C. The presser foo-t is unlocked, the needle and the cast-oii move downwards.

D. Raising of the presser foot and backward movement of same while the needle penetrates into the work, the cast-off stopping on the work.

E. The presser foot comes down again on the work and the thread is looped on the hook of the needle.

It will be seen from the above sequence of operations that the point 5!! which forms the presser-foot and at the same time feeds the work forward, is brought to bear against the work under the action of its weight and that of the parts which carry it, said movement being aided by the action of the spring |34 which acts on the collar 21; it is therefore always automatically at the exact heightI which corresponds to the thickness of the work, the point'raising mechanism constituted by the pawl l0 and the toothed sector G5 always operating inthe same manner whatever may be the height at which said point is stopped.-

porting member secured to said table, a thread looper mounted within said shoe-supporting member, a yneedle-holder mounted in the head of the machine and operatively connected to a member adapted to slide in said head, said looper and said sliding member being driven simultaneously, the former through a gear train, the latter through a connecting rod, means for feeding forward the work, cam means associated with said sliding member and adapted to actuate said work feeding means at the end of the ascending stroke of the needle-holder, a xed bearing on said head for supporting said needle-holder, a collar displaceable vertically relatively to said bearing; work clamping means secured to said collar, resilient means for normally holding said collar in engagement with said bearing, means associated with said bearing for limiting and guiding the displacements of said collar relatively ito said bearing, and means for holding said collar stationary during the stroke of the needle-holder, to prevent the displacement of said work clamping means relatively to the work, and for releasing said collar when the needle holder is at the end of its upstroke.

2. A portable shoe stitching machine, comprising in combination, a frame member, a head mounted on said frame member, a table mounted on the base of said frame member, a shoe-supporting member secured to said table, a thread looper mounted within said shoe-supporting member, a needle-holder mountedin the head of the machine and operatively connected to a member adapted to slide in said head, a sleeve surrounding said needle-holderand adapted to slide thereon, stops on said sleeve disposed to cooperate with said needle holder, said looper and said sliding member being driven simultaneously, the former through a gear train, the latter through a connecting rod, means forfeeding forward the work, cam means associated with said sliding member and adapted to actuate said work feeding means at the end of the ascending stroke of the needle holder, a fixed bearing on said head for supporting said needle-holder, a collar displaoeable vertically relatively to said bearing, work clamping means secured to said collar, resilient means for normally holding said collar in engagement with said bearing, means associated with said bearing for limiting and guiding the displacements of said collar relatively to said bearing, means for holding said collar stationary during the stroke of the needle-holder to prevent the displacement of said work clamping means relatively to the work, and for releasing said collar when the needle-holder is at the endof its upstroke, and means associated with the frame of the machine for braking the movement of said needle-holder so as to prevent the displacement thereof save when such displacement is positively effected by the stops of said sleeve.

8. A portable shoe stitching machine, comprising in combination, a frame member, a head I mounted on said frame member, a table mounted on the base of said frame member, a shoe-supporting member secured to said table, a thread looper mounted within said shoe-supporting member, a needle-holder mounted in the head 55 of the machine and operatively Connected to a member adapted to slide in said head, a needle mounted in said needle-holder, said looper and said sliding member beingy driven simultaneously by means of a crank handle driving the looper through a gear train, and at the same time rotating a toothed wheel on which is mounted a connecting rod for reciprocating said sliding member, a sleeve surrounding said needle-holder and adapted to slide thereon, stops on said sleeve disposed to cooperate with said needle-holder, a fixed bearing in said head for supporting said needleholder, a collar displaceable vertically relatively to said bearing, a combined Work clamping and feeding means pivotally mounted on said collar and adapted to feed the Work forward at the required instant, cam means associated with said sliding memberv and adapted to actuate said combined Work clamping and feeding means at the end of the ascending stroke of the needleholder, resilient means normally holding said collar in engagement with said bearing, means associated with said bearing for limiting and guiding the displacements of said collar relatively to said bearing, means for holding said collar stationary during the stroke of the needle-holder to prevent the displacement of the Work clamping and feeding means relatively to the work, and for releasing said collar when the needle-holder is at the end of its upstroke, a ring secured to said needleholder, and a cast-off slidably mounted in said ring and cooperating with said needle, said castoff sliding in said ring when the latter has descended into contact with the Work, and being brought back to its position of rest by a spring when the needed-holder rises again.

' 4, A portable shoe stitching machine, comprising in combination, a frame member, a head mounted on said frame member, a table mounted on the base of said frame member, a shoe-supporting member secured to said table, a thread looper mounted Within said shoe-supporting member, a needle-holder mounted in the head of the machine and operatively connected to a member adapted to slide in said head, a needle mounted in said needle-holder, said looper and said sliding member being driven simultaneously by means of a crank handle driving the looper through a gear train and at the same time rotating a toothed Wheel on which is mounted a connecting rod for reciprocating said sliding member, a sleeve surrounding said needle-holder and adapted to slide thereon, stops on said sleeve disposed to kcooperate with said needle-holder, a fixed bearing in said head for supporting said needle-holder, a collar displaceable vertically relatively to said bearing, a combined Work clamping and feeding means pivotally mounted on said collar and adapted to feed the Work forward at the required instant, cam means associated with said sliding member and adapted to actuate said combined Work clamping and feeding means at the end of the ascending stroke of the needle-holder, resilient means normally holding said collar in engagement with said bearing, means associated with said bearing for limiting and guiding the displacements of said collar relatively to said bearing, means for holding said collar stationary during the stroke of the needleholder, to prevent the displacement of the work clamping and feeding means relatively to the work, and for releasing said collar when the needle-holder is at the end of its upstroke, a ring secured to said needle-holder, a cast-off slidably mounted in said ring and cooperating With said needle, said cast-off sliding in said ring when the latter has descended into contact with the Work, and being brought back to its position of rest by a spring when the needle-holder rises again, and

means cooperating with said sliding member for automatically raising said collar and combined Work clamping and feeding means at the required instant.

5. A portable shoe stitching machine, comprising in combination, a frame member, a head 101' mounted on said frame member, a table mounted on the base of said frame member, a shoe-supporting member secured to said table, a thread looper mounted Within said shoe-supporting member, a needle-holder mounted in the head of i the machine and operatively connected to a member adapted to slide in said head, a needle mounted in said needle-holder, said looper and said sliding member being driven simultaneously by means of a crank handle driving the looper TA through a gear train and at the same time rotating a toothed wheel on which is mounted a connecting rod for reciprocating said sliding member, a sleeve surrounding said needle-holder and adapted to slide thereon, stops on said sleeve disposed to cooperate with said needle-holder, a fixed bearing on said head for supporting said needleholder, a collar displaceable vertically relatively to said bearing, a combined presser foot and Work feeding member pivotally mounted on said collar,

and adapted to feed the work forward at the required instant, cam means associated With said sliding member and adapted to actuate said combined presser foot and Work feeding member at the end of the ascending stroke of the needle, resilient means normally holding said collar in engagement with said bearing, means associated With said bearing for limiting and guiding the displacements of said collar relatively to said bearing, means for holding said collar stationary x during the stroke of the needle-holder to prevent the displacement of the combined presser foot and Work feeding member relatively to the work, and for releasing said collar When the needleholder is at the end of its upstroke, a ring secured to said needle-holder, a cast-01T slidably mounted lin said ring and cooperating with said needle, said cast-off sliding in said ring when the latter has descended into contact with the Work, and being brought back to its position of rest by a spring When the needle-holder rises again, means cooperating with said sliding member for automatically raising said collar and combined presser foot and work feeding member at the required instant, and means for locking said collar to prevent said combined presser foot and Work feeding member from rising while the needle is coming out of the Work.

6. A portable shoe stitching machine, comprising in combination, a frame member, a head mounted on said frame member, a table mounted on the base of said frame member, a shoe supporting member secured to said table, a thread looper mounted Within said shoe-supporting member, a needle-holder mounted in the head of the machine and operatively connected to a member adapted to slide in said head, a needle mounted in said needle-holder, said looper and said sliding member being driven simultaneously by means of a crank handle driving the looper through a gear train and at the same time rotating a toothed Wheel on which is mounted a connecting rod for reciprocating said sliding member, a sleeve surrounding said needle-holder and adapted'to slide thereon, stops o-n said sleeve disposed to cooperate with said needle-holder, a xed bearing in said head for supporting said needle-holder, a collar displaceable vertically relatively to said bearing, a combined presser foo-t and Work feeding means pivotally mounted on said collar, and adapted to feed the Work forward at the required instant, cam means associated With said sliding member and adapted to actuate said combined presser foot and Work feeding member at the end of the ascending stroke of the needle, resilient means normally holding said collar in engagement with said bearing, means associated with said bearing for limiting and guiding the displacements of said collar relatively to said bearing, means for holding said collar stationary during the stroke of the needle-holder to prevent the displacement of the combined presser foot and Work feeding member relatively to the Work, and for releasing Said collar when the needle-holder is at the end of its upstroke, a ring secured to said needleholder, a cast-off slidably mounted in said ring and cooperating with said needle, said cast-off sliding in said ring When the latter has descended into contact with the Work, and being brought back to its position of rest by a spring when the needle-holder rises again, means cooperating with said sliding member for automatically raising said collar and combined presser foot and Work feeding member at the required instant, and a push rod slidably mounted in said bearing and cooperating With one end of a two-armed lever, the other end of which is pushed by a cam mounted on the head thereby preventing said combined presser foot and Work feeding member from rising While the needle is coming out of the Work.

7. A portable shoe stitching machine, comprising in combination, a frame member, a head mounted on said frame member, a table mounted on the base o-f said frame member, a shoe-supporting member secured to said table, a thread looper mounted Within said shoe-supporting member, a needle-holder mounted in the head of the machine and operatively connected to a member adapted to slide in said head, a needle mounted in said needle-holder, said looper and said sliding member being driven simultaneously by means of a crank handle driving the looper through a gear train and at the same time rotating a toothed Wheel on which is mounted a connecting rod for reciprocating said sliding member, a sleeve surrounding said needle-holder and adapted to slide thereon, stops on said sleeve disposed to cooperate With said needle-holder, a xed bearing in said head for supporting said needle holder, a collar displaceable vertically relatively to said bearing, a combined presser foot and Work feeding means pivotally mounted on said collar, and adapted to feed the Work forward at the required instant, cam means associated with said sliding member and adapted to actuate said combined presser foot and Work feeding member at the end of the ascending stroke of the needle, resilient means normally holding said collar in engagement With said bearing, means associated With said bearing for limiting and guiding the displacements of said collar relatively to said bearing, means for holding said collar stationary during the stroke of the needle-holder to prevent the displacement of the combined presser foo-t and work feeding member relatively to the Work, and for releasing said collar When the needle-holder is at the end of its upstroke, a ring secured to said needle-holder, a cast-off slidably mounted in said ring and cooperating with said needle, said castof sliding in said ring When the latter has descended into contact with the Work, and being brought back to its position of rest by a spring when the needle-holder rises again, means cooperating With said sliding member for automatically raising said collar and combined presser foot and Work feeding means at the required instant, a push rod slidably mounted in said bearing and cooperating With one end of a two-armed lever, the other end of Which is pushed by a cam mounted on the head thereby preventing said combined presser foot and Work feeding member from rising While the needle is coming out of the Work, and means for rocking said combined presser foot and Work feeding member Without preventing the vertical displacement of the latter.

ARTHUR LOUIS FIQUET. ANDRE' GABRIEL MoUssET. 

